Pyspark实战（二）wordcount词频统计

E盘根目录创建test.txt输入测试内容如下：

this is a test

this very good

you is very good

what are you

完整代码如下：

from pyspark import SparkContext,SparkConf



def wordcount():

    txtfile=r'E:\test.txt'



    conf=SparkConf()

    conf.setAppName("worlcount")

    conf.setMaster("local[*]")

    sc = SparkContext(conf=conf)



    rdd=sc.textFile(txtfile)

    rdd.flatMap(lambda x:x.split( )).map(lambda x:(x,1)).reduceByKey(lambda x,y:x+y).foreach(lambda x:print(x))



if __name__ == '__main__':

    wordcount()

pycharm直接运行，或者使用命令提交：spark-submit --master local E:\geotrellis\pyspark_dem\base\wordcount.py

执行结果：

说明执行成功。